Home / 1,215,569.20-1,824,995.40-710,647.60

Finding the Fourth Proportional to 1,215,569.20, 1,824,995.40 and 710,647.60

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Solution

The fourth proportional to 1,215,569.20, 1,824,995.40 and 710,647.60 is: 1,066,931.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,215,569.20 : 1,824,995.40 = 710,647.60 : x
  2. Step 2: Convert to fraction form
    1,215,569.20/1,824,995.40 = 710,647.60/x
  3. Step 3: Cross multiply
    1,215,569.20x = 1,824,995.40 × 710,647.60
  4. Step 4: Simplify right side
    1,215,569.20x = 1,296,928,601,021.04
  5. Step 5: Solve for x
    x = 1,296,928,601,021.04/1,215,569.20
  6. Step 6: Final answer
    x = 1,066,931.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.